1,924 research outputs found
Role of Intellectual Property Rights on Economic Growth in China
Nowadays, Chinese government tries to gain more sustainable and high speed growth on the economic performance with more innovation brought by improving intellectual property rights (IPR) system. A view on protecting IP by previous studies is that the effect of strength IPR on economic growth is not clear. There is no doubt that the IPR construction could bring both benefit and cost to China. In this study, the role of IPRs on innovation activities are analyzed at first, and then I employ the cointegration theory to test the influence of IPR on China’s economic growth (GDP). The final results show that there is a significant positive relationship between IPR and GDP
The Study on Structural Design of Buildings on the Slope
The current code for structures mainly focuses on the flat ground buildings, neglecting the particularity of the structure on the slope due to the lack of targeted control indicators and guidance. Several problems that require special considerations in design and some reference solutions were proposed from three aspects, including seismic design, foundation design and supporting structure design
Player-optimal Stable Regret for Bandit Learning in Matching Markets
The problem of matching markets has been studied for a long time in the
literature due to its wide range of applications. Finding a stable matching is
a common equilibrium objective in this problem. Since market participants are
usually uncertain of their preferences, a rich line of recent works study the
online setting where one-side participants (players) learn their unknown
preferences from iterative interactions with the other side (arms). Most
previous works in this line are only able to derive theoretical guarantees for
player-pessimal stable regret, which is defined compared with the players'
least-preferred stable matching. However, under the pessimal stable matching,
players only obtain the least reward among all stable matchings. To maximize
players' profits, player-optimal stable matching would be the most desirable.
Though \citet{basu21beyond} successfully bring an upper bound for
player-optimal stable regret, their result can be exponentially large if
players' preference gap is small. Whether a polynomial guarantee for this
regret exists is a significant but still open problem. In this work, we provide
a new algorithm named explore-then-Gale-Shapley (ETGS) and show that the
optimal stable regret of each player can be upper bounded by where is the number of arms, is the horizon and
is the players' minimum preference gap among the first -ranked arms. This
result significantly improves previous works which either have a weaker
player-pessimal stable matching objective or apply only to markets with special
assumptions. When the preferences of participants satisfy some special
conditions, our regret upper bound also matches the previously derived lower
bound.Comment: SODA 202
Rethinking Skip-thought: A Neighborhood based Approach
We study the skip-thought model with neighborhood information as weak
supervision. More specifically, we propose a skip-thought neighbor model to
consider the adjacent sentences as a neighborhood. We train our skip-thought
neighbor model on a large corpus with continuous sentences, and then evaluate
the trained model on 7 tasks, which include semantic relatedness, paraphrase
detection, and classification benchmarks. Both quantitative comparison and
qualitative investigation are conducted. We empirically show that, our
skip-thought neighbor model performs as well as the skip-thought model on
evaluation tasks. In addition, we found that, incorporating an autoencoder path
in our model didn't aid our model to perform better, while it hurts the
performance of the skip-thought model
Speeding up Context-based Sentence Representation Learning with Non-autoregressive Convolutional Decoding
Context plays an important role in human language understanding, thus it may
also be useful for machines learning vector representations of language. In
this paper, we explore an asymmetric encoder-decoder structure for unsupervised
context-based sentence representation learning. We carefully designed
experiments to show that neither an autoregressive decoder nor an RNN decoder
is required. After that, we designed a model which still keeps an RNN as the
encoder, while using a non-autoregressive convolutional decoder. We further
combine a suite of effective designs to significantly improve model efficiency
while also achieving better performance. Our model is trained on two different
large unlabelled corpora, and in both cases the transferability is evaluated on
a set of downstream NLP tasks. We empirically show that our model is simple and
fast while producing rich sentence representations that excel in downstream
tasks
Best-of-three-worlds Analysis for Linear Bandits with Follow-the-regularized-leader Algorithm
The linear bandit problem has been studied for many years in both stochastic
and adversarial settings. Designing an algorithm that can optimize the
environment without knowing the loss type attracts lots of interest.
\citet{LeeLWZ021} propose an algorithm that actively detects the loss type and
then switches between different algorithms specially designed for specific
settings. However, such an approach requires meticulous designs to perform well
in all environments. Follow-the-regularized-leader (FTRL) is another type of
popular algorithm that can adapt to different environments. This algorithm is
of simple design and the regret bounds are shown to be optimal in traditional
multi-armed bandit problems compared with the detect-switch type. Designing an
FTRL-type algorithm for linear bandits is an important question that has been
open for a long time. In this paper, we prove that the FTRL algorithm with a
negative entropy regularizer can achieve the best-of-three-world results for
the linear bandit problem. Our regret bounds achieve the same or nearly the
same order as the previous detect-switch type algorithm but with a much simpler
algorithmic design.Comment: Accepted in COLT 202
Normalized solutions for the Schr\"{o}dinger equation with combined Hartree type and power nonlinearities
We investigate normalized solutions for the Schr\"{o}dinger equation with
combined Hartree type and power nonlinearities, namely \begin{equation*}
\left\{ \begin{array}{ll} -\Delta u+\lambda u=\gamma (I_{\alpha }\ast
\left\vert u\right\vert ^{p})|u|^{p-2}u+\mu |u|^{q-2}u & \quad \text{in}\quad
\mathbb{R}^{N}, \\ \int_{\mathbb{R}^{N}}|u|^{2}dx=c, & \end{array}% \right.
\end{equation*} where and is a given real number. Under
different assumptions on and , we prove several
nonexistence, existence and multiplicity results. In particular, we are more
interested in the cases when the competing effect of Hartree type and power
nonlinearities happens, i.e. including the cases and Due to the different "strength" of two
types of nonlinearities, we find some differences in results and in the
geometry of the corresponding functionals between these two cases
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